It has to be Rachel. or nobody. Rachel was his best friend and knew him as much as anyone on the planet outside of Alfred. He wanted to marry her. Maybe Bale didn't have as much chemistry with Maggie/Katie but the story did.
Selina didn't seem interested at all in Bruce. What showed she did. It seemed maybe they shared a connection with we are both screwed up but I didn't really see much sexual chemistry from Catwoman towards men period. She seemed way more interested into women. JMO. The kiss they shared was so weird.It was way too late and she looked like she wanted to throw up.